Re: [RFC][PATCH] sched/wait_bit: Introduce wait_var_event()/wake_up_var()

[David Howells]

Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> Does the below address things sufficiently clear?

Yep.

> +wait_queue_head_t *__var_waitqueue(void *p)
> +{
> +	if (BITS_PER_LONG == 64) {
> +		unsigned long q = (unsigned long)p;
> +
> +		return bit_waitqueue((void *)(q & ~1), q & 1);
> +	}
> +	return bit_waitqueue(p, 0);
> +}

You might be better off not using bit_waitqueue() but rather do the
calculation directly since you don't actually have a bit number.

David